[389-users] Replica has no update vector.

[Rich Megginson]

Techie wrote:
> On Wed, Apr 7, 2010 at 9:35 AM, Rich Megginson <rmeggins at redhat.com> wrote:
>   
>> Techie wrote:
>>     
>>> Hi,
>>>
>>> I have Winsync agreements simply to pull accounts from AD. No pass
>>> sync configured, nothing pushed from Directory Server to AD, simply
>>> pulling account info from AD to Directory Server with no password.
>>>
>>> I did full synchronization to pull accounts from AD and it was
>>> successful, many accounts were populated.
>>> My issue is that I get this in the error log..
>>>
>>> NSMMReplicationPlugin - agmt="cn=winsync" Replica has no update vector
>>>
>>> It seems that Winsync is working but I don't know how serious this is
>>> or if it can be ignored. My feeling is that it must mean something
>>> because it is consistently logging every 4 seconds.
>>>
>>> I did some reading and RUV is described as..
>>> A collection of information within each replica that determines how up
>>> to date the replica is with respect to other replicas for that
>>> partition.
>>> I also read that...
>>> This information is stored on both the supplier and the consumer and
>>> that it determines which changes need to be replicated..And that each
>>> server should know more about its own replica ID than the other
>>> servers do.
>>>
>>> I am probably missing the obvious as I have only 1 replica..  can
>>> someone please help my understanding?
>>>
>>>       
>> It seems that windows sync can require several initializations before it
>> starts working correctly.
>>     
> Thanks for the answer.
> I have a few questions that will help my understanding.
>
> 1)By initializations you mean to do a full resynchronization or just
> send and receive updates?
>   
Full resync
> 2)Once I have already done an initial full resynchronization and my
> accounts are populated in 389, will initiating another full
> resynchronization delete all account information in 389 and pull it
> back down, or will it just search for changes? I have attributes that
> I have added and dont want to lose those by doing a full
> resynchronization. The documentation indicates that it will not
> delete, just looking for confirmation.
>   
The docs are correct.
> 3)I have already populated 389 via winsync. Can I import these
> accounts onto another server and then create a Winsync agreement to AD
> and have that agreement search for any changes?
Yes and no.  Winsync is not multi-master - you cannot have more than one 
directory server sync'ing to more than one AD if the directory servers 
use MMR to each other, and the AD's are replicating to each other.
> I mean will Winsync
> leave my accounts intact in the 389 directory?
Yes.
> Almost the same
> question as the last except I need to move these accounts to a new
> server eventually and want to keep all attributes and mods intact on
> the new server.
>   
Ok.
> 4)All the accounts created by winsync in 389 have the ntUser
> objectClass. However according to the documentation they should not
> attempt to sync to AD unless they have the ntUserCreateNewAccount
> attribute. Is this correct?
>   
If you create a new user in the DS, and in that new entry you have the 
ntUserCreateNewAccount attribute set to true, then winsync will create 
that user in AD.  By default, if you create a user in the DS, that user 
is not created in AD.  If you have a user in the DS that you want to 
create in AD, you can add the ntUser objectclass to the entry along with 
the required attribute ntUserDomainID set to the AD samAccountName, and 
set the ntUserCreateNewAccount to true.
> Thanks again
> TC
>   
>>> Thank you
>>> TC
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>>>       
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